#403687

#403687

Color Values

HEX

#403687

RGB

64, 54, 135

HSL

247.4, 42.9%, 37.1%

HSV

247.4, 60.0%, 52.9%

CMYK

52.6%, 60.0%, 0.0%, 47.1%

OKLCH

0.3911 0.1303 284.2

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#403687

#7D8736

Analogous

#365587

#693687

#403687

Triadic

#403687

#874036

#368740

Split Complementary

#403687

#876936

#558736

Tetradic

#403687

#873655

#7D8736

#368769

Color Blindness Simulation

Original

#403687

Protanopia

#3C3C73

Deuteranopia

#3C3D6F

Tritanopia

#406461

Achromatopsia

#3E3E3E

CSS Usage

background-color: #403687;
color: #403687;
border-color: #403687;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F5FA
100
#E8E7F4
200
#D0CCEB
300
#AEA8DC
400
#8278C9
500
#5649B6
600
#453A92
700
#372F75
800
#2B245B
900
#221E43
950
#16132A

Contrast Checker

Text on white

10.02:1

AA Pass AAA Pass

Text on black

2.1:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026